:root {
  --image-preview-backdrop: rgba(3, 7, 12, 0.9);
  --image-preview-panel: rgba(13, 20, 30, 0.72);
  --image-preview-panel-border: rgba(119, 183, 255, 0.24);
  --image-preview-accent: #4df1ff;
}

html.image-preview-open,
body.image-preview-open {
  overflow: hidden;
  touch-action: none;
}

.image-preview {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  padding: clamp(12px, 3vw, 32px);
}

.image-preview[hidden] {
  display: none !important;
}

.image-preview__backdrop {
  position: absolute;
  inset: 0;
  background: var(--image-preview-backdrop);
  backdrop-filter: blur(12px);
}

.image-preview__shell {
  position: relative;
  width: min(1280px, 100%);
  height: min(100%, calc(100vh - 24px));
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) 56px;
  gap: 14px;
  align-items: center;
}

.image-preview__viewport {
  position: relative;
  min-width: 0;
  height: min(100%, calc(100vh - 96px));
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: auto;
}

.image-preview__img {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  user-select: none;
  -webkit-user-drag: none;
  transform: translate3d(var(--preview-x, 0px), var(--preview-y, 0px), 0) scale(var(--preview-scale, 1));
  transform-origin: center center;
  transition: transform 120ms ease, filter 160ms ease;
  cursor: zoom-in;
  filter: drop-shadow(0 18px 40px rgba(0, 0, 0, 0.55));
}

.image-preview[data-zoomed="true"] .image-preview__img {
  cursor: grab;
}

.image-preview__viewport.is-dragging .image-preview__img {
  cursor: grabbing;
  transition: none;
}

.image-preview__nav,
.image-preview__close {
  appearance: none;
  border: 1px solid var(--image-preview-panel-border);
  background: var(--image-preview-panel);
  color: #f4fbff;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(10px);
}

.image-preview__nav {
  width: 56px;
  height: 56px;
  border-radius: 999px;
  display: inline-grid;
  place-items: center;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}

.image-preview__nav:hover,
.image-preview__close:hover {
  border-color: rgba(77, 241, 255, 0.6);
  color: var(--image-preview-accent);
}

.image-preview__nav:disabled {
  opacity: 0.35;
  cursor: default;
}

.image-preview__nav--prev {
  justify-self: end;
}

.image-preview__nav--next {
  justify-self: start;
}

.image-preview__close {
  position: absolute;
  top: 0;
  right: 0;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
  z-index: 2;
}

.image-preview__meta {
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: min(100%, 920px);
  display: flex;
  justify-content: space-between;
  gap: 12px;
  pointer-events: none;
  padding: 0 4px;
}

.image-preview__caption,
.image-preview__counter {
  max-width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--image-preview-panel-border);
  border-radius: 999px;
  background: rgba(9, 15, 22, 0.72);
  color: #f4fbff;
  backdrop-filter: blur(8px);
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.4);
}

.image-preview__caption {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.image-preview__counter {
  flex: 0 0 auto;
}

.image-preview[data-single="true"] .image-preview__nav {
  display: none;
}

@media (max-width: 760px) {
  .image-preview {
    padding: 10px;
  }

  .image-preview__shell {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr auto;
    gap: 10px;
  }

  .image-preview__viewport {
    height: calc(100vh - 108px);
  }

  .image-preview__nav {
    width: 48px;
    height: 48px;
    font-size: 24px;
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
  }

  .image-preview__nav--prev {
    left: 0;
  }

  .image-preview__nav--next {
    right: 0;
  }

  .image-preview__close {
    top: 4px;
    right: 4px;
  }

  .image-preview__meta {
    left: 0;
    transform: none;
    width: 100%;
    padding: 0;
    flex-direction: column;
    align-items: stretch;
  }

  .image-preview__caption,
  .image-preview__counter {
    border-radius: 14px;
    font-size: 13px;
  }

  .image-preview__caption {
    white-space: normal;
  }
}